Wing type brush



July 31, 1956 N, E. NIELSEN WING TYPE BRUSH Filed Feb. 6, 1953 ...IS l 2:.

United States Patet WING TYPE BRUSH Niels E. Nielsen, Summit, N. J., assigner to Newark Brush Company, Kenilworth, N. 3., a corporation of New Jersey Application February 6, 1953, Serial No. 335,410

'10 Claims. (Cl. 15-179) This invention relates to a new form of a brush which is specially adapted for use incleaning theinside of tubes, mold cavities and relatively small holes in different materials. It is another object of my invention to pro vide a wing type brush which can be operated by any handy' tool such as a small hand drill into which the holder of the brush can be inserted into` the chuck of the drill. Another object of my invention is to provide a construction for the purpose just described which can be quickly and cheaply made yet one that is highly eicient in its operation. Another-object of my invention is to provide a small brush unit which can be quickly and securely installed in a holder so constructed that various types of brushes can be quickly installed in the holder. Another object of my invention is to provide an improved brush unit construction wherein high carbon and tine iron wire, horse hair, nylon, tampico or cotton may be easily and quickly formed into a unit to go into the same holder.- Another object of my invention is to provide a wing brush that can be made in various sizes for assembly in special holder constructions to be described. In the drawings accompanying this specication Figure l is an elevational view of one of the wing brushes mounted in a holder, the drawings being about twice the size of e complete structure.

Figure 2 is a view of Figure l on the line 2 2.

Figure 3 is a view on the line 3 3 of Figure 2.

Figure 4 is a view on the line 4 4 of Figure l.

Figure 5 is a view on the line 5 5 of Figure l.

Figure 6 is a view on the line 6 6 of Figure 1.

Figure 7 is a plan view of the assembly and clamping ring forming an important part of the brush unit.

Figure 8 is a side view of Figure 7.

Figure 9 is a view partly in section of a modied form of construction.

Figure 10 is a View of the parts shown in Figure 9 but in disassembled position.

Figure l1 is a view of one lof the parts of Figure l0 but turned 90.

Figure l2 is a view of the upper member of Figure l0 turned 90, the bristles being broken ofton one end.

In the various views wherein like numbers refer to corresponding parts, 1 is an assembly ring which can be quickly made from a tube of suitable metal. As shown in Figure 3, after the bristles 2 have been inserted into the ring 1 the unit is pressed so that the ring 1 takes the form shown in Figures 3 and 4. It will be clearly seen that this brush unit can be easily and cheaply made and ready for assembly in a suitable holder 3, which is preferably made of strong metal such as a steel rod that may be bored out down to a point 4 adjacent the reduced solid end 5 of the rod, but this is not altogether necessary especially for the smaller sizes of brushes. Preferably the bore at the brush end of the rod 3 has a larger bore 6 for a distance somewhat greater than to the width of the ring 1, down to a point a short distance below a set screw 7. Preferably the tube is slitted at 8 parallel to its longitudinal diameter as shown in Figure 2, but the upper Patented July 31, 1956v r'ce the lengthof the lenlarged slit 9 is kjust sutiicient toaccom-v modatethe brush, unit. After the unit has been installed in the holder 3 as shown in Figures VV1 -4, the screw 7 is tightened. up so as to draw. the arcuate portions of the holder 3 toward eachother and cause themto grip the brush unit `securely inthev holder.

Since `the brush units mayrfbe made in different sizes the holdersare made in sizes totakethe brushes, which has been stated earlier,in thespecication, are madeto be used to cleantubes, and cavities ofdifferent. sizes which can be carriedon a template the same as drills andthe brush assemblies canbe utilized in vdrill V-chucks just -the same as ordinary drills.

ln Figures 9-12, the holder 10 ismade of a rod having the same diameter throughout itsvlength withV one end threaded at 11 to receive a part 12, threaded at 13 to engage the threads 11 'in` the holder 10. The part 12 has a conir;al.;taper.f14.t-ol litV thevtapered hole 15 in the part 10. The part 12,has a ,bore 16 terminating in a transverse slit 17 which extends intothetapered part 14. Thebore 16 is adaptedto receive the plug end 1S formed froma small ring 1. A large bore 19 is `adapted to receivepart 20 .of a ring,;this part carrying the bristles 2. With thisA construction, after the bristles 2 have been assembled into ating, vas shownin Figures. 9, 10 and 12, the brush unit is assembled intoy the holderpart 12 and that: then ,inserted into themain `part 10 yofthe holder, after which vthemain, part 10 of the holderl is .turned so therscrew threads11 and 13,will draw. the part 12l into therpart 10. whereby the? conical taper 15,acting'on the taper 14 will cause the split sections of part 12 to move into strong gripping engagement with the plug end 18 and also a lighter grip onto the part 20 that carries the bristles. We have found this construction to be advantageous as none of the bristles will be broken off by the part 20 which might happen if too great a pressure were applied to said part.

The construction shown in Figures 9-12 is especially adapted for making wing brushes much smaller than shown in Figures l and 3, in fact the rod 10 may have a knob or handle 'on its outer end so the brush may be turned directly by an operators hand where circumstances present themselves.

From the foregoing it will be seen that I have designed a wing type brush that serves many useful purposes.

Having thus described my invention what I claim is:

1. A brush structure including a ring for receiving bristles, said ring being attened after the bristles have been inserted into the ring to form a unit, a holder comprising a rod hollow for a part of its length and slitted on the diameter of the hollow portion, the rod having a solid end for mounting the holder in a suitable chuck, the end of the holder opposite the solid end preferably having a bore enlargement and an enlargement of said slit, said enlargement bore and slit adapted to receive said bristles unit and means for forcing the two split portions of the rod toward each other to grip said bristle unit.

2. A brush structure including a ring for receiving brush material, said ring and material being flattened to form a wing brush unit, a holder comprising a rod having preferably a solid end to go into a tool chuck, the rod at the opposite end being hollow with a pair of longitudinal slits oppositely disposed extending through the wall of the hollow part, the slits being wider at the end of the holder to receive the brush unit and means for drawing the parts of the rod defined by the slits toward each other. to clamp the brush unit in the holder.

3. A brush structure including a ring for receiving brush material, said'ring and material being flattened to form a wingbrush unit,'a holder comprising a rod having a solid end to go into an operating tool, the rod away from the solid end having Vtwo hollow parts divided by two oppositely' disposed slits, thehollow parts and slits at the end opposite the solid end being of 'larger dimension than the restof the hollow part and slits to receive the brush unit and means for drawingthe parts defined by the slits toward each other to clamp the brush unit in. operative position.V

4. A brush structure including a ringpreferably cut froml a tube'of suitable metal, the ring being lled with a desired brush material, then thering and material being flattened to form. a wing brush unit, aholder having a solid end and an opposite hollow slitted end to receive the brush unit and clamping means for causing the slitted ends to approach each other and'securely grip thek said 5; A brushstructure as set forth in claim 4 further defined in that the flattened ring is located wholly within the saidr hollowslittedend while only `the brush material extends through the slits to forma pairof oppositely disposed brush wings. g g Y 6. A brush structure as set forth in claim 4 further dened in that the hollow part of the holder as Well as the slits extends from `a point near the solid end of the holder to the other end whereby greater resilience is obtained making it easier to install the brush unit in operative position and further defined in that said clamping means is a transversely positioned screw 'going through and operatively engaging the two slitted parts, the screw preferably being located near the location of the'brush in the holder.

7. A brush structure including a ring'for receiving brush material, said ring and material being attened to form a wing brush unit, a holder having one end adapted to go into a tool chuck, the holder having at its opposite end a slitted part to receive said brush unit and means for forcing said slitted parts toward each other to cause them to grip the brush unit.

8. A brush structure as set forth in claim 7 further defined in that said slitted part of the holder has a tapered conical end to t a co-operative surface in the main part of the holder and a screw threaded end to engage screw threads in the main part of the holder as and for the purposes described. Y

9. A brush structure as set'forth in claiml 7 further dened in that the holder is in two pieces, one of which is slitted to receive the brush unit and a tapered conical surface terminating in a threaded end, the other piece of the holder having screw-threads to receive the threaded end of the iirst mentioned piece and a tapered conical surface to engage the similar surface of the said one piece for the purpose described.

10. A wing lbrush unit including a ring for receiving brushmaterial, one part of the ring being formed into a plug, while the other part'holds the brush material, a holder having a main part and an end to receive said unit and co-operative adjustable means, between said main part and end of the holder, to cause said end to grip the ring plug harder than the part of the ring carrying the brush material, when said main part is properly operated.

References Cited in the tile' of this patent y UNITED STATES PATENTS 179,376 

